MECH 4006: VEHICLE ENGINEERING I Tentative Course Outline ...

Academic AccommodationYou may need special arrangements to meet your academic obligations during the term because ofdisability, pregnancy or religious obligations. Please review the course outline promptly and write to mewith any requests for academic accommodation during the first two weeks of class, or as soon aspossible after the need for accommodation is known to exist.Students with disabilities requiring academic accommodations in this course must register with the PaulMenton Centre for Students with Disabilities (PMC) for a formal evaluation of disability-related needs.Documented disabilities could include but not limited to mobility/physical impairments, specificLearning Disabilities (LD), psychiatric/psychological disabilities, sensory disabilities, Attention DeficitHyperactivity Disorder (ADHD), and chronic medical conditions. Registered PMC students are requiredto contact the PMC, 613-520-6608, every term to ensure that your Instructor receives your Letter ofAccommodation, no later than two weeks before the first assignment is due or the first in-classtest/midterm requiring accommodations. If you only require accommodations for your formallyscheduled exam(s) in this course, please submit your request for accommodations to PMC by the lastofficial day to withdraw from classes in each term.OutlineWeek Topics1,2 Performance characteristics of ground vehicles. Motion of a vehicle as a rigid body. Propertiesof pneumatic tires: rolling resistance, tractive (braking) effort and longitudinal slip (skid),performance on wet surfaces.3 Aerodynamic drag estimation. Dynamic load transfer, maximum transferable tractive force.4 Acceleration limits, gradability, deceleration and braking, maximum deceleration rates, stoppingdistance. Antilock braking systems.5,6 Power plant performance and selection. Transmission characteristics, selection of gear ratios.Vehicle performance analysis, estimation of acceleration time and distance.7 Handling characteristics of road vehicles. Lateral behaviour of pneumatic tires, lateral force andside slip angle, cornering stiffness.8,9 Steady state cornering. Neutral steer, understeer, and oversteer. Directional stability of roadvehicles. Characteristic speed and critical speed. Steady state response characteristics. Activestability control. Four-wheel steering.10 Transient handling characteristics. Testing of handling performance.11 Ride characteristics of ground vehicles. General vehicle ride models, linear model of sprung andunsprung mass. Two-degrees-of-freedom ride model for sprung mass, pitch and bounce,oscillation centres.12 Criteria for good ride, dynamic index, flat riding tuning. Suspension mechanics. Suspensiondynamic properties. Active and semi-active suspensions.13 Review